Flat Fan Twin turbo

[porsche 930twin]

Hi all back on the project ... changes changes... going to re-do turbo headers to have turbos at the rear of the engine.. all scavenge tanks finished oil feed to flat fan and turbos now done just trying to work out fan pulley drive ratio, don't want to spin its brain of and don't want to under spin it....Any ideas....what clutch should I use G-50 trans.. street use only

[MikeD930]

Several things...may I suggest to just add postings to one thread you started instead of creating new threads (three so far!)? Also, are you aware that you can edit your existing postings? Just trying to help you here.

As for the oil feed to the flat fan are you using the discharge side of the turbo scavenge pump? If yes then don't do that! You need to use another source for oil feed. Since I'm unfamiliar with the flat fan's need for oil pressure and flow I have no idea what source to use for the flat fan. Sorry for not being much of a help!

[Maltese Falcon]

Oil the fan drive via the op sending galley, up top of the engine case, next to the breather tube.
I use this galley for turbo(s) oil feed as well.
Marty

[pkracer21j]

We're one step ahead of you. are you using the serpentine drive or V belt?D-Zug Flat Fan Installation

[porsche 930twin]

Hi I have also taken the oil pickup for the fan from the rear sender,, but I have taken oil for the turbos from the oil lines going to the cam tensioner boxes..
Do I need to run a port for the brake booster and if so where should I take it from ..Paul

[pkracer21j]

if your keeping power brakes then yes, and it should be on the engine side of the throttle bodies.